/**
 * @file SCardSet.ts
 * @description 技能卡池独立配置
 *
 * 职责：
 *   维护所有技能卡（CardType.Skill）的原始数据，并构建为标准 CardConfig[]。
 *
 * 设计：
 *   - 技能卡不再按 wave 过滤，所有技能卡均可被抽取。
 *   - 所有技能卡均按次数触发（t_times），不再永久存在。
 *   - card_lv 直接显式配置，不再依赖 wave 推导。
 *   - 数值基线高于普通英雄普攻（ap:100），通过 overrides 附加 ap/crt/frz/stun/bck 等效果。
 *
 * 依赖：
 *   - CardSet —— CardConfig / CardType / CKind / CardTriggerType
 *   - SkillSet —— SkillOverrides
 */
import { CardConfig, CardType, CKind, CardTriggerType } from "./CardSet";
import { SkillOverrides } from "./SkillSet";

/** 技能卡原始数据（平铺字段，构建后转为 CardConfig） */
interface SkillCardRaw {
    uuid: number;
    skill: number;
    card_lv: number;
    name: string;
    info: string;
    icon?: string;          // 图标ID（对应 ui6 图集 frame 名）
    is_inst: boolean;
    t_times?: number;       // 触发次数（未设置时按 is_inst 取默认值：即时=1，定时=3）
    t_inv?: number;
    keep_waves?: number;    // 维持波次数（默认 0=仅本波次）
    trigger_type: CardTriggerType;
    overrides?: SkillOverrides;
}

const SkillCardData: SkillCardRaw[] = [
    // ==================== card_lv 1 · 基础单体（ap:150，附加差异化效果） ====================
    // --- 刀剑系：暴击 ---
    { uuid: 8101, skill: 6001, card_lv: 1, icon: "Sword-FA_WP_Main_Sword_003_PurpleSilver", name: "飞剑卷轴", info: "召唤飞剑攻击敌人，造成攻击力150%的伤害，25%暴击", is_inst: false, t_times: 3, t_inv: 5, trigger_type: CardTriggerType.Interval, overrides: { ap: 150, crt: 25 } },
    { uuid: 8102, skill: 6002, card_lv: 1, icon: "Sword-FA_WP_Main_Sword_009_GraySilver", name: "飞刀卷轴", info: "召唤飞刀攻击敌人，造成攻击力150%的伤害，25%暴击", is_inst: false, t_times: 3, t_inv: 5, trigger_type: CardTriggerType.Interval, overrides: { ap: 150, crt: 25 } },
    { uuid: 8103, skill: 6003, card_lv: 1, icon: "Sword-FA_WP_Main_Sword_019_WoodSilver", name: "匕首卷轴", info: "召唤匕首攻击敌人，造成攻击力150%的伤害，25%暴击", is_inst: false, t_times: 3, t_inv: 5, trigger_type: CardTriggerType.Interval, overrides: { ap: 150, crt: 25 } },
    // --- 斧锤系：击退 ---
    { uuid: 8104, skill: 6004, card_lv: 1, icon: "Axe-FA_WP_Main_Axe_004_WoodGray", name: "飞斧卷轴", info: "召唤飞斧攻击敌人，造成攻击力150%的伤害，25%击退", is_inst: false, t_times: 3, t_inv: 5, trigger_type: CardTriggerType.Interval, overrides: { ap: 150, bck: 25 } },
    { uuid: 8107, skill: 6007, card_lv: 1, icon: "Blunt-FA_WP_Main_Blunt_002_Wood", name: "飞棒卷轴", info: "召唤飞棒攻击敌人，造成攻击力150%的伤害，25%击退", is_inst: false, t_times: 3, t_inv: 5, trigger_type: CardTriggerType.Interval, overrides: { ap: 150, bck: 25 } },
    { uuid: 8111, skill: 6011, card_lv: 1, icon: "Blunt-FA_WP_Main_Blunt_005_Gray", name: "飞锤卷轴", info: "召唤飞锤攻击敌人，造成攻击力150%的伤害，25%击退", is_inst: false, t_times: 3, t_inv: 5, trigger_type: CardTriggerType.Interval, overrides: { ap: 150, bck: 25 } },
    { uuid: 8112, skill: 6012, card_lv: 1, icon: "Axe-FA_WP_Main_Axe_002_WoodGray", name: "飞斧·重卷轴", info: "召唤飞斧·重攻击敌人，造成攻击力150%的伤害，25%击退", is_inst: false, t_times: 3, t_inv: 5, trigger_type: CardTriggerType.Interval, overrides: { ap: 150, bck: 25 } },
    // --- 枪矛系：穿透（多命中1次） ---
    { uuid: 8105, skill: 6005, card_lv: 1, icon: "Spear-FA_WP_Main_Spear_010_MetalBlue", name: "飞枪卷轴", info: "召唤飞枪攻击敌人，造成攻击力150%的伤害，可贯穿2个目标", is_inst: false, t_times: 3, t_inv: 5, trigger_type: CardTriggerType.Interval, overrides: { ap: 150, hit_count: 2 } },
    { uuid: 8106, skill: 6006, card_lv: 2, icon: "Stat_Attack_01", name: "突刺·双卷轴", info: "召唤突刺·双攻击敌人，一次释放2发，造成攻击力180%的伤害，可贯穿2个目标", is_inst: false, t_times: 3, t_inv: 5, trigger_type: CardTriggerType.Interval, overrides: { ap: 180, hit_count: 2, num: 1 } },
    // --- 远程射击系：高暴击 ---
    { uuid: 8108, skill: 6008, card_lv: 1, icon: "Stat_RangedAttack", name: "射击卷轴", info: "召唤射击攻击敌人，造成攻击力150%的伤害，30%暴击", is_inst: false, t_times: 3, t_inv: 5, trigger_type: CardTriggerType.Interval, overrides: { ap: 150, crt: 30 } },
    { uuid: 8109, skill: 6009, card_lv: 1, icon: "Stat_RangedAttack", name: "蓝箭卷轴", info: "召唤蓝箭攻击敌人，造成攻击力150%的伤害，30%暴击", is_inst: false, t_times: 3, t_inv: 5, trigger_type: CardTriggerType.Interval, overrides: { ap: 150, crt: 30 } },
    { uuid: 8110, skill: 6010, card_lv: 1, icon: "Stat_RangedAttack", name: "火箭卷轴", info: "召唤火箭攻击敌人，造成攻击力150%的伤害，30%暴击", is_inst: false, t_times: 3, t_inv: 5, trigger_type: CardTriggerType.Interval, overrides: { ap: 150, crt: 30 } },
    // --- 魔球系：击晕 ---
    { uuid: 8113, skill: 6013, card_lv: 1, icon: "Sub_Item-FA_WP_Sub_MagicBall_001_Blue", name: "蓝魔球卷轴", info: "召唤蓝魔球攻击敌人，造成攻击力150%的伤害，25%击晕", is_inst: false, t_times: 3, t_inv: 5, trigger_type: CardTriggerType.Interval, overrides: { ap: 150, stun: 25 } },
    { uuid: 8114, skill: 6014, card_lv: 1, icon: "Sub_Item-FA_WP_Sub_MagicBall_001_Purple", name: "紫魔球卷轴", info: "召唤紫魔球攻击敌人，造成攻击力150%的伤害，25%击晕", is_inst: false, t_times: 3, t_inv: 5, trigger_type: CardTriggerType.Interval, overrides: { ap: 150, stun: 25 } },
    // --- 药瓶系：冰冻 ---
    { uuid: 8115, skill: 6015, card_lv: 1, icon: "Sub_Item-FA_WP_Sub_Potion_001_Green", name: "绿药瓶卷轴", info: "召唤绿药瓶攻击敌人，造成攻击力150%的伤害，25%冰冻", is_inst: false, t_times: 3, t_inv: 5, trigger_type: CardTriggerType.Interval, overrides: { ap: 150, frz: 25 } },
    { uuid: 8116, skill: 6016, card_lv: 1, icon: "Sub_Item-FA_WP_Sub_Potion_001_Red", name: "红药瓶卷轴", info: "召唤红药瓶攻击敌人，造成攻击力150%的伤害，25%冰冻", is_inst: false, t_times: 3, t_inv: 5, trigger_type: CardTriggerType.Interval, overrides: { ap: 150, frz: 25 } },

    // ==================== card_lv 2 · 中阶范围（ap:200，群体附加） ====================
    { uuid: 8201, skill: 6101, card_lv: 2, icon: "Stat_FireDamage", name: "火球·双卷轴", info: "召唤火球·双攻击敌人，一次释放2发，造成攻击力200%的伤害，30%暴击，可命中2个目标", is_inst: false, t_times: 3, t_inv: 5, trigger_type: CardTriggerType.Interval, overrides: { ap: 200, crt: 30, num: 1 } },
    { uuid: 8202, skill: 6102, card_lv: 2, icon: "Stat_Mana", name: "飓风卷轴", info: "召唤飓风攻击敌人，造成攻击力200%的伤害，30%击晕，可命中2个目标", is_inst: false, t_times: 3, t_inv: 5, trigger_type: CardTriggerType.Interval, overrides: { ap: 200, stun: 30 } },

    // ==================== card_lv 3 · 高阶范围（ap:250，群体附加） ====================
    { uuid: 8301, skill: 6201, card_lv: 3, icon: "Stat_SplashDamage", name: "陨石雨卷轴", info: "召唤陨石雨攻击敌人，一次释放3发，每发造成攻击力250%的范围伤害，40%击晕", is_inst: false, t_times: 4, t_inv: 4, trigger_type: CardTriggerType.Interval, overrides: { ap: 250, stun: 40, num: 2 } },
];

/**
 * 技能卡池（已构建为标准 CardConfig[]）。
 * 不再按 wave 过滤，所有技能卡均可被抽取。
 */
export const SkillCardList: CardConfig[] = SkillCardData.map(data => {
    // 触发次数：显式配置优先；未配置时即时=1，定时=3
    const defaultTimes = data.is_inst ? 1 : 3;
    return {
        uuid: data.uuid,
        skill: data.skill || undefined,
        type: CardType.Skill,
        cost: 0,
        weight: 10,
        kind: CKind.Skill,
        card_lv: data.card_lv,
        icon: data.icon,
        name: data.name,
        info: data.info,
        is_inst: data.is_inst,
        t_times: data.t_times ?? defaultTimes,
        t_inv: data.t_inv || 0,
        keep_waves: data.keep_waves ?? 0,
        overrides: data.overrides,
        trigger_type: data.trigger_type,
    } as CardConfig;
});

/**
 * 按权重抽取一张卡（带权重随机）。
 */
function weightedPick(cards: CardConfig[]): CardConfig | null {
    if (cards.length === 0) return null;
    const totalWeight = cards.reduce((total, card) => total + (card.weight ?? 0), 0);
    let random = Math.random() * totalWeight;
    for (const card of cards) {
        random -= (card.weight ?? 0);
        if (random <= 0) return card;
    }
    return cards[cards.length - 1];
}

/**
 * 按权重抽取 N 张技能卡（unique 保证一次刷新内不重复，不足时允许重复补齐）。
 * @param count 需要抽取的数量
 */
export function drawSkillCards(count: number): CardConfig[] {
    const safeCount = Math.max(0, Math.floor(count));
    if (SkillCardList.length === 0 || safeCount <= 0) return [];

    const picked: CardConfig[] = [];
    let available = [...SkillCardList];
    while (picked.length < safeCount) {
        if (available.length === 0) break;
        const pick = weightedPick(available);
        if (!pick) break;
        picked.push(pick);
        available = available.filter(c => c.uuid !== pick.uuid);
    }

    // 不足时允许重复补齐
    const filled = [...picked];
    while (filled.length < safeCount) {
        const fallback = weightedPick(SkillCardList);
        if (!fallback) break;
        filled.push(fallback);
    }
    return filled;
}